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Use the moon method.

E.g. (x+1)(x+2) 

1. multiply x with x

2. multiply x with 2

3. mutiply 1 with x

4. multiply 1 with 2

3/10

1/2

This is a common question among A-Level Maths students, as integration by parts requires 2 things: 1. Something to integrate ; 2. Something to differentiate. In ln(x), we can immediately see that ln(x) is...

12th term = a + (12 - 1)*d = 2 + 11(3) = 35

Sum (9) = 9/2 [2(2) + (9 - 1)*3] = 9/2 [28] = 252/2 = 126